The new products are available directly from the society and through intermediaries.
Notable deals include a 10-year fixed rate at 2.54 for remortgage with a £999 completion fee and £250 cashback. ERCs apply during the 10 year term.
And a 10-year fixed rate at 2.84% for remortgage with no completion fee, £500 cashback and no ERCs after five years.
Richard Scott, head of intermediaries at the West Brom, said: “Following the recent increase of the base rate, there are concerns over inflation and how this may hit borrowers in 2022.
“We’re seeing a trend of borrowers wanting peace of mind on their monthly repayments for an extended period, beyond the current two-year and five-year fixed offerings.
“Adding 10-year fixed-rates to our current range provides further options for borrowers in the long-term mortgage market. Some of the products also include a break option once the borrower is five years into their fixed-rate mortgage term, where the borrower will not have to pay an early repayment charge, providing more flexibility for those who may want to switch at the half-way point.”